Jagadeeshwar Sayaboina

Designed and developed a high-performance Payments System handling diverse payment methods and subscription flows, processing up to 500 TPS at peak load. Designed dynamic KYC verification processes for 2 Million+ agents reducing verification time by 80%. Developed end-to-end digital credit card application process with partner banks increasing customer acquisition by 20% within six months. Led the catalog and recommendation features achieving a 99th percentile latency under 100ms. Fixed 300+ critical vulnerabilities across backend systems, achieving PCI-DSS compliance for ZET Card. Mentored interns and SDE1s, facilitated their successful onboarding, enabling them to deliver key project components.

Developed highly efficient data sync workers processing 50 million daily user events. Led the migration of legacy systems from Google App Engine to GKE saving $200K annually. Collaborated with cross-functional teams and partners to understand and translate business requirements into scalable technical solutions. Migrated process intensive monolithic service to gRPC microservices, achieving a 24% increase in throughput and a 15% reduction in latency. This migration maintained an overall 84% of unit test coverage improving reliability.

Developed checkout and payment services for electric scooters supporting high traffic with latency under 90ms. Automated robust invoice generation and auditing processes with data pipelines and schedulers, reducing processing time from 48 hours to near real-time. Led the development of customer support system with consistent role-based access control. Developed home-delivered test ride system increasing the test-ride to sale conversion rate by 16%.

Enhanced fraud detection models speed by 30% using data pickling and multi-threading.